[sane-devel] Re: Plustec OpticSlim 12M - calibration

[Maciej Piechotka]

On Sat, 02 Dec 2006 16:11:34 +0100, Gerard Klaver wrote:

> On Sat, 2006-12-02 at 00:41 +0100, Maciej Piechotka wrote:
>> On Fri, 01 Dec 2006 07:11:35 +0100, Gerhard Jaeger wrote:
>> 
>> > On Friday 01 December 2006 00:21, Maciej Piechotka wrote:
>> >> I have probably not calibrated scanner (If I scan something it returns
>> >> blue sheet). How can I do it?
>> >> 
>> > 
>> > RTFM - SCNR ;)
>> > The status of this device says: Scans, but no calibration is performed and 
>> > the area selection is limited.
>> > 
>> > There's no way for you to do the calibration, as the backend itself is not
>> > able to handle this - sorry
>> > 
>> > Gerhard
>> > 
>> >
>> 
>> Sorry I asked in such way - is it possible to make it working (after give
>> some values from hand)?
>> 
>> If I understand you it's also[1] impossible by operating in such values as
>> R/G/B Brightness and so on in xsane or any other front-end) - am I correct?
>> 
>> Regards
>> 
>> [1] As I said I thought I could give some values to make it working and
>> it's just automatized process.
>> 
>> -- 
>> I've probably left my head... somewhere. Please wait untill I find it.
>> Homepage (pl_PL): http://uzytkownik.jogger.pl/
>> (GNU/)Linux User: #425935 (see http://counter.li.org/)
>> 
>> 
> If you see the frontend menu for this scanner (xscanimage or xsane) the
> only fields for some "color" correction are maybe the gamma value and/or
> selecting the red, green or blue (gray mode color).
> 

Ok. I'll try to use it.

> To get the calibration into the backend some usb sniff or usb log is
> needed using the calibration sheet and then writing program code for it.
> I don't know if somebody already made some usb sniff/log file?
> 

What's a name of open usb sniffer?
Should I send a sniff from GNU/Linux or from Windows?

> I have placed on my page some info and a sample of the calibration card
> for this scanner see http://gkall.hobby.nl/gt6816-07b3-0412.html
> 

I've been there searching informations.
I have the same calibration sheet.

Regards
-- 
I've probably left my head... somewhere. Please wait untill I find it.
Homepage (pl_PL): http://uzytkownik.jogger.pl/
(GNU/)Linux User: #425935 (see http://counter.li.org/)